* {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,Liberation Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;
}

.main-theme {
  height: 100vh;
  background-color: #f4f7fa;
}

.main-theme.light {
  background-color: #f4f7fa;
}

.main-theme.dark {
  background-color: #b3b4b4;
}

.nav-container-wrapper {
  display: flex;
  justify-content: center;
  height: 56px;
  background: rgba(12, 17, 31, .25);
  position: fixed;
  width: 100%;
  backdrop-filter: blur(10px);
  z-index: 111;
}

.nav-container-inner {
  display: flex;
  width: 1200px;
}

.nav-left {
  align-items: center;
  background: #00a8eb;
  display: flex;
  height: 56px;
  justify-content: center;
  margin-right: 24px;
  width: 139px;
}

.nav-left img {
  height: 20px;
  width: 122px;
}

.nav-mid ul {
  display: flex;
  list-style: none;
  font-weight: 500;
  color: hsla(0, 0%, 100%, .702)
}

.nav-mid li {
  height: 56px;
  line-height: 56px;
  padding: 0 16px;
  position: relative;
  text-align: center;
}

.nav-mid li.active {
  color: #fff;
}

.nav-mid li.active::after {
  border-radius: 4px;
  bottom: 0;
  content: "";
  height: 3px;
  left: 50%;
  position: absolute;
  transform: translate(-50%);
  width: 32px;
  background: #fff;
}

.nav-right {
  flex: 1;
  text-align: right;
}

.nav-right select {
  margin-top: 20px;
}

.banner{
  height: 260px;
  line-height: 260px;
  color: white;
}
.banner h1{
  font-family: 'Arial', sans-serif;
  font-size: 48px;
  background: linear-gradient(to right, #ff121a, #ff6236, #753aff, #ff10bb);
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 2px 2px 4px rgba(240, 236, 236, 0.5);
}

.banner {
  display: flex;
  background: #3B9AFC;
  justify-content: center;
  position: relative;
}

.menu-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

.menu {
  display: flex;
  width: 1155px;
 
  background: #fff;
  border-radius: 8px;
  height: 83px;
  padding: 0 21px 0 24px;
  justify-content: space-between; 
}

.menu-unit {
  padding: 16px 0;
  display: flex;
}

.menu-unit:last-child {
  margin-right: 0;
}

.menu-icon img {
  height: 50px;
  margin-right: 20px;
  width: 50px;
}

.menu-detail {
  display: flex;
  flex-direction: column;
}

.menu-title {
  color: #15171a;
  font-size: 16px;
  font-weight: 500;
}

.menu-description {
  color: #6b7986;
  font-size: 14px;
  font-weight: 400;
  margin-top: 9px;
}

.section-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 88px;
}

.section {
  width: 1200px;
  display: flex;
}

.section-unit {
  width: 50%;
}

.section-unit:first-child {
  margin-right: 20px;
}

.section-unit h1 {
  color: #000;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
}

.card-wrapper {
  grid-gap: 16px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2,1fr);
  grid-template-rows: auto auto;
}

.card {
  border: 1px solid #000;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  padding: 22px 12px 23px 12px;
  -webkit-text-decoration: none;
  text-decoration: none;
}

.card-big {
  margin-left: 20px;
  width: 580px;
  height: 180px;
  background: linear-gradient(to bottom right, #007bff, #00bfff);

  border-radius: 8px;
  padding: 12px;
}

.card-title {
  color: #000;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 4px;
}

.card-detail {
  color: #6b7986;
  font-size: 14px;
  font-weight: 400;
  width: 275px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-big img {
  width: 100%;
  height: 168px;
}